I do what I can to keep app use to a minimum during the day, but what's the point of having a nice expensive phone if you're too afraid of using it due to battery drainage? I'm not playing videos all day or streaming music, and I definitely don't have WiFi connected, which I know can rain battery. I also know that there's no real way to "kill" apps and that task managers for Android are essentially useless, if not more battery draining. I reject the idea that a brand new smart phone cannot last atleast twenty-four hours of moderate, normal use. I'm just afraid to tinker with operating business, I guess.

I've definitely been using Kies for a few years! How did the rooting affect the devices you performed it on?